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ID:14359398
大小:601.53 KB
页数:7页
时间:2018-07-28
《plant mitosis, cytokinesis and cell plate formation》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、PlantCells:Mitosis,SecondaryarticleCytokinesisandCellPlateArticleContents.PlantCellMitosisFormation.ThePreprophaseBand.AssemblyoftheProphaseSpindleRichardJCyr,PennsylvaniaStateUniversity,UniversityPark,Pennsylvania,USA.ThePhragmoplast.CellPlateAssemblyCelldivisioninplantsinvolvesnucleard
2、ivisionandcellplateformation.Thesetwo.CaffeineAffectsCytokinesisprocessesensureasteadysupplyofnewcellsforthegrowinganddevelopingplant.PlantCellMitosislocatedinvariouspartsoftheplant.Theprimarymeristemsresideintherootandshootapex,withPlants,likeothereukaryotes,producenewcellsbysecondaryce
3、ntreslocatedmostlyaroundthevasculardivision.Inmitosis(alsoknownasnucleardivisionortissue.Somecellsoftheepidermisalsohavemeristematickaryokinesis)thereplicatednucleargeneticmaterialischaracter.accuratelydistributedintothetwodaughternuclei,whilePlantsaresessile(i.e.stationary)andvirtuallya
4、lloftheirincytokinesisthecytoplasmispartitionedintwo.Sinceallcellsareboundbyarigidcellwall.Cellscannotmoveeukaryotesmustaccomplishthesetwoeventstoensurearoundinthedevelopingplantastheydoinmanyotherproductivecellularfission,thecellularmachineryasso-multicellulareukaryotes.Rather,plantcells
5、remainstuckciatedwiththesetwoprocessesishighlyconserved.tooneanotherthroughouttheirlifespan.TheinabilityofHowever,therehavebeenmodificationstothesebasicmostplantcellstomoverelativetooneanothermeansthatprocessesamongdifferentgroupsoforganisms.Ithasbeentheplacementofanewcrosswallatcytokinesi
6、shaslifelongover600millionyearssincethedivergenceofplantandrepercussionsforthetworesultingsistercells.Thus,plantanimalancestorsandanumberofdivision-relatedfunc-developmentrequirescarefulorchestrationofcellulartionshaveevolvedthatareuniquetothelifestyleofplants.divisionplanes,togetherwith
7、coordinatedcellularexpan-Thisarticlewillhighlightsomeofthenovelfeaturesofsion.plantcelldivision,inparticularhowithasadaptedtotheDividingplantcellscomeinavarietyofshapesandsizes,plantcellularenvironmentanditsroleinplantdevelop-andthespeedofdivisioncanbeaffectedbytheirgeomet
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